Improvement in ventilating waste-pipes in houses



,i M. 'MULLIGAN e Ventiletigg WastefPipes'in Houses." No. 219,499.

Patented Sept. 9, 1879.

Y INVENTOR q' ATTORNEYS N.FEKF.RS PHOTO LITHOGRAFH wASHxNGToN D C UNITED STATES PATENT OFFICE,

MARTIN MULLIGAN, OF TROY, New YORK.

IMPFIOVEMIENT` IN VENTILATING WASTE-PIPES IN HOUSES.

Specification forming part of Letters Patent N o. 219,499, dated September 9, 1879; application tiled i April 15,1879.

tilating-pipe having branches connecting` with the various water-closets, sinks, tubs, 85e., abovel the traps therein, and anotherl branch connecting with thel waste-pipe below-its trap, as will be more fully hereinafter set forth. r-

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and Operation, referring to the annexed dla-wings, in which- Y i Figure 1 is a perspectiveyiew ot' my inven- V tion. Fig. 2 is a detailed section ot' a part thereof. Fig. 3 is an enlarged section of water-closet.

A represents a bath-tub, and B B two water-closets, all connected with the waste-pipe G, to lend to the sewer in any of the known and usual ways. In the waste-pipe C is a trap, l), as shown. F is a pipe running np through the house. and intended to extend a suit-able distance above the roof. Thisy pipe is, by branches a a, connected with each water-closet and with the bath-tub, as shown, and it is also, by a pipe, b, connected with the waste-pipe C at a point beyond the trap D.

Where stationary wash stands and washtubs are used,4 as Well as kitchen and pantry sinks, they should also be connected with the pipe F.

The various branch pipes are run level, so that the condensed hot air or moisture will run back into the waste-pipes, and the pipes connecting with the sinks, closet-s, 85e., should be arranged at the highest points possible in the'sinks, closets, Snc., and in all cases above all traps, whereby I obtain a current ot' air from the room, through the wastes, to the top of the house, so that any foul air formed in the pipes` which would otherwise come into the roomV will be carried with the current to the open air.

It will readily be understood that all sewergas will pass from the waste-pipe, through the branch b, inloand Ont through the Ventilating pipe or column F in a steady current, and will not pass through the traps into the house. This current ot' sewer-gas creates a suction through the upper portion of the waste-pipe. and the various branches aa, so that a series of currents are established from within the house through the branches a, therehycarrying O' any t'Oul air that may be generated or collected in said pipes, and preventthe same 'rom entering the. house.

In Fig. 3 I have shown the same system ot' ventilation applied to one water-closet Ot' ordinary construction-that is, having the usual S-trap.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a system for relieving houses troni sewergas, the combination, with the waste-pipe G, of' the vertical ventilatiug-pirm F, branches a, a, connecting the pipe F with the water-closets, sinks, tubs, Src., above the traps, and another branch, b, connecting said pipe F with the waste-pipe below its trap, substantially as herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal this 29th day of March, 1879.

, MARTIN MULLIGAN. |L. S.]

Witnesses:

EDMUND T. COLE, G. H. PARSONS. 

